Type: Wireless headphone(with cable) Bettery: 150mah Driver Unit: 40 mm Function: Volume control, pause/ Play device, MIC function Standby time: 100 hours Frequency Response: 20 Hz-20KHz Cable length: 1m±10% Connector: 3.5mm stereo plug Sensitivity: 114db/mW Audio source: communication equipment 1 month warrenty